Improvement in cotton-seed mills



l. r. BROWN.

" 'lmpr-evement in Cotton Seed Mill's.

Patented Jan. 23, 1872-.

INVENTOR. I iw/mzwwj PATENT OFFICE.

ISRAEL F. BROWN, OF NEW LONDON, CONNECTICUT.

IMPROVEMENT IN COTTON-S EED MILLS.

Specification forming part of Letters Patent No. 122,877, dated January23, 1872.

SPECIFICATION.

I, ISRAEL F. BROWN, of the town and county of New London, State ofConnecticut, have invented certain Improvements in Cotton-Seed Mills, ofwhich the following is a specification:

My invention relates to an improved form of the scrapers, or stationarygrinding surfaces, which act in connection with rotary grindingcylinders, of the mill for grinding the seed and consists in soconstructing these scrapers that by changiu g their posit-ion in themill, together With reversing or turning the mill upside down, entirenew grinding surfaces are presented, thus doubling the length of thewear of the machine without additional cost in its first construction,

the object of the invention being to provide a cheap machine forplantation useto grind seed for feed, fertilizers, and other purposes.

In the accompanying drawing, Figure 1 is a vertical section of a machineembodying my invention; Fig. 2 is an enlarged view of the same.

D is the frame of the machine, which consists of two hoppers madeseparate and joined together at G. At the intersection of these suitablejournal-boxes are provided for the reception of the shafts F. Upon theseshafts are fixed .the grinding rollers A, which rollers may be furrowedin any manner preferred. B and O are what I denominate the scrapers, andconstitute the principal feature of my invention. They are formed withone flat side, which rests against the side of the hopper D, and withtwo curved sides each, corresponding to the form of the cylinder A. Thesurfaces of these sides are furrowed, as shown, but with this differencebetween the piece B and the piece (1, that in the piece B, which is inthe upper part of mill, the furrows run downward, while in the piece 0,which is placed in the lower part of the mill, the furrows run upward;so that in both a proper form is presented to the action of the cylinderA.

After the surfaces of the scrapers B and O are worn out, they are takenout by removing the screws E E, and the piece B placed in the positionoccupied by piece 0, and vice versa, so that their relative positionsare reversed, and they present new surfaces to the action of thecylinder A. It is now only necessary to turn the mill upside down, andit is again ready for use.

It is this changing of the pieces B and O to present new surfaces,together with the turnin g of the mill to bring them into properposition, that constitutes my invention. It will be seen that after themill is turned upside down the direction of the motion of the cylindermust be changed. This presents to the scrapers the sides of the furrowson the surface of cylinders that have not been worn, and thus in ameasure the cylinders are renewed.

It is evident that either one or two cylinders may be used, aspreferred.

I do not claim any particular form of furrowed surfaces, nor anyfeatures of the mill distinct from those above referred to.

What I. claim is The scrapers B and O, in combination with the frames DD and cylinder A, when constructed and arranged substantially as and forthe purpose described.

ISRAEL F. BROWN.

Witnesses:

I. M. ALBERTsON, N. G. RICHARDS.

